Electrical Engineering

TOTH provides distribution and transmission planning services for cooperatives, municipalities and investor-owned utilities. Our engineers are experienced in all aspects of electrical system studies and planning, from construction work plans, to long range plans, to system sectionalizing. In all aspects of system planning, TOTH works closely with clients to provide recommendations for both short-term and long-term growth. Using data provided by the client and the latest modeling software, a plan is developed to accommodate the realistic growth of a system over the next two to 20 years.

TOTH’s electrical engineers have professional experience on a wide range of systems planning design projects. Our scope of services includes, but is not limited to:

Construction Work Plans, System Studies, and Long Range Plans

  • Load forecasting
  • Load flow analysis
  • Transmission power flow studies
  • System improvement recommendations
  • Reliability/contingency analysis
  • System energy losses evaluations
  • Cost analysis of line loss
  • Regulatory filings for local, state, and federal agencies

Other related planning services

  • Sectionalizing analysis
  • Voltage flicker/motor starting analysis
  • Arc flash studies
  • Distributed generation interconnection studies
  • Power factor correction studies
  • Feasibility studies
  • Environmental impact studies

TOTH’s professionals are assisting Ouchita Electric Cooperative establish route, establish and procure right-of-way (ROW), design and administer construction contracts for approximately 13.5 miles of 115kV line from new Summerville Switch Station (on AEP’s existing 115kV line) to Ouachita’s existing Summerville distribution station.

Ouachita Electric Cooperative – Summerville 115 kV Transmission Design & Environmental Impact Statement

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TOTH’s team of professional engineers and supporting staff provides customized consultation, design and support from initial project conceptualization through station commissioning. Clients include an array of municipalities, industrial and rural electric cooperatives. Station design services include new construction, expansions and upgrades for medium voltage stations through EHV class stations. TOTH’s engineers are well-versed in relaying protection, design protection and control, and testing of substations.

Our station design team uses cutting edge 3D modeling and rendering, which allows for clear communication and better collaboration with our clients. A virtual station “fly-through” allows clients to see the station before it is ever built.

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TOTH provides clients with a broad range of design and project management services for both transmission and distribution lines ranging from 12.47 kV through EHV class lines. TOTH’s team of professional engineers and support staff has assisted clients all across the country to design lines ranging from under a mile to dozens of miles in length.

Our services include, but is not limited to:

  • Design-Build/EPC (engineer-procure-construct)
  • Survey
  • Right-of-way acquisition
  • Topographic
  • Staking
  • New & existing line design and modeling
  • PLS/CAD modeling
  • Design installation of OPGW/ADSS
  • Materials and steel pole procurement
  • Line routing
  • Permitting/contract administration
  • Work orders

TOTH’s professionals are assisting Ouchita Electric Cooperative establish route, establish and procure right-of-way (ROW), design and administer construction contracts for approximately 13.5 miles of 115kV line from new Summerville Switch Station (on AEP’s existing 115kV line) to Ouachita’s existing Summerville distribution station.

Ouachita Electric Cooperative – Summerville 115 kV Transmission Design & Environmental Impact Statement

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